<template>
  <div v-if="Object.keys(detailInfo).length !== 0" class="goods-info">
    <div class="info-desc">
      <div class="start"></div>
      <div class="desc">{{detailInfo.desc}}</div>
      <div class="end"></div>
    </div>
    
    <div class="info-key">
      {{detailInfo.detailImage[0].key}}
    </div>

    <div class="info-list">
      <img 
        v-for="(item,index) in detailInfo.detailImage[0].list" :key="index" :src="item" alt=""
        @load="imgLoad">
    </div>
  </div>
</template>

<script>
export default {
  name: 'DetailGoodsInfo',
  props: {
    detailInfo:{
      type:Object,
      default(){
        return {}
      }
    }
  },
  data(){
    return{
      counter:0,
      imagesLength:0,
    }
  },
  methods: {
    imgLoad(){
      // 判断，所有的图片都加载完了，那么进行一次回调就可以了
      if(++this.counter === this.imagesLength){
        this.$emit('detailImgLoad')
      }
    }
  },
  watch: {
    detailInfo(){
      // 获取图片的个数
      this.imagesLength = this.detailInfo.detailImage[0].list.length;
    }
  }
}
</script>

<style scoped>
.goods-info {
  padding: 20px 0;
  border-bottom: 5px solid #f2f5f8;
  background-color: #fff;
}
.info-list{
  padding: 0 15px;
}
.info-desc .start,
.info-desc .end{
  width: 90px;
  height: 1px;
  background-color: #a3a3a5;
  position: relative;
}
.info-desc .start{
  float: left;
}
.info-desc .end{
  float: right;
}
.info-desc .start::before,
.info-desc .end::after{
  content: '';
  position: absolute;
  width: 5px;
  height: 5px;
  background-color: #333;
  bottom: 0;
}
.info-desc .end::after {
  right: 0;
}
.info-desc .desc {
  padding: 15px 0;
  font-size: 14px;
}
.info-key {
  margin: 10px 0 10px 15px;
  color: #F86A99;
  font-size: 15px;
  text-align: center;
}
.info-list img {
  width: 100%;
}
</style>
